Do the Dew for a bleeding fish? An Ottawa biologist investigates the healing power of pop

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By Andrew Duffy, Ottawa Citizen, June 25, 2019

A Carleton University biologist is putting to test the belief of an Ottawa River muskie guide who says that pouring Diet Coke on a bleeding fish can save its life.

Prof. Steven Cooke has launched the first scientific study of what has, in recent years, become a controversial tenet of fish first aid.

Advocates of the practice contend that the carbon dioxide in soda causes blood vessels in the gills to constrict and halt bleeding; critics call it dangerous pop science.